I don't use the stylus all that much to be honest. I like to show people the new S-Note and the cool math functions it has (Grampa you will have to wait for this if you are on the stock rom ;p), and I use the stylus when I want to take a screenshot.

If I were playing Angry Birds on it or Draw Something then maybe I would use it a bit more but I don't tend to play many games on my phone (or games at all anymore).